Suppose we imagine the Sun to be about the size of a grapefruit. How far away are the nearest stars (the three stars of Alpha Centauri)?

A) the length of a football field (100 meters)
B) across town
C) across the state
D) across the United States
E) 25,000 miles


D

Physics & Space Science

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Stars of the main sequence, like our own, are all converting ________ into helium

Fill in the blank(s) with correct word

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Which of the following are not produced by streams?

A) floodplains B) deltas C) moraines D) alluvial fans

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The field just outside the surface of a long conducting cylinder which has a 2.0-cm radius points radially outward and has a magnitude of 200 N/C. What is the charge density on the surface of the cylinder?

a. 2.7 nC/m2 b. 1.8 nC/m2 c. 3.5 nC/m2 d. 4.4 nC/m2 e. 0.90 nC/m2

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A car starts from rest and accelerates with a constant acceleration of 1.00 m/s2 for 3.00 s. The car continues for 5.00 s at constant velocity. How far has the car traveled from its starting point?

A) 24.0 m B) 9.00 m C) 19.5 m D) 4.50 m E) 15.0 m

Physics & Space Science